.valid_true{
    background: #fff url(../images/valid.png) no-repeat 98% center;
    box-shadow: 0 0 5px #5cd053;
    border-color: #28921f;
}
.valid_false{
    background: #fff url(../images/invalid.png) no-repeat 98% center;
    box-shadow: 0 0 5px #d45252;
    border-color: #b03535
}
